In a clinic in which the assignment of patients to therapy was demonstrated as not affected by social class and in which no patient was excluded as unsuitable, 45% of those referred to group therapy stayed 2 or more years. The only category that consistently correlated with not remaining in treatment was that of unemployment. When unemployed persons were included there appeared to be a significant correlation between a stay of 2 or more years and social class. When only employed persons were considered, this significance disappeared.